Injection-mold clamping unit having alternately ejecting die assemblies
US4005964A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/221
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection mold includes a stationary platen carrying a pair of stationary die sections, a movable platen carrying a pair of movable die sections, and a pair of floating die sections disposed between the movable and stationary die sections. The respective floating and stationary die sections are mutually configured to define a pair of die cavities which are arranged for alternate communication with an injector unit. The floating die sections are selectively connectable to their associated movable and stationary die sections to expose one of the die cavities for article ejection, while maintaining the other die cavity closed for continuing a curing stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.